Added a system preference to turn on/off this feature.
By default the system allow the patron to place holds even if it is in his possession.
Script to place holds check if the system preference is off and if patron has at least one item to block holds.
Messages to say that are already in patron possession added to templates.
Method to check if patron has one issue from one record added to C4::Circulation
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
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